.product-description{       font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;       color:#333; line-height:1.6; margin:0; padding:0; background:#fff; font-size:16px;     }     .features{list-style:none; padding:0; margin:10px 0 0 0;}     .features li{margin:8px 0; position:relative; padding-left:20px;}     .features li:before{content:"✓"; position:absolute; left:0; color:#28a745; font-weight:700;}